On the server, you can choose 5 of these:

1 Mythical Drill (Breaks 9 Blocks At Once) (self destructs after 5 days)
1 Mythical Tree Chopper (Breaks Trees Instantly) (self destructs after 5 days)
1 Mythical Sell Axe (Instant Sells All Items in A Chests) (self destructs after 5 days)
1 Mythical Multi-Tool (Changes Between Different Tools) (self destructs after 5 days)